Lid adjuster and support



C. PETERSON LID ADJUSTER AND SUPPORT. APPLICATION FILED 0mm. (921.

1,405,433. v Patented Feb. '7, 1922.

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, CARL rErERsomor NnwoAs'rLE, INDIA-NAIL.

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3 To all who m itmay concern:

Be it known that I, CARL PETERSON, a

' ;citizen of the United States, residing at Newcastle, in the countyof. Henry and State 1 of Indiana, have invented new andusefulglmprovements in Lid Adjusters and Supports, of which thefollowing is a specification. This invention relates to" improvements inmeans for holding the hinged lids of --pianos, piano benches, andreceptacles of all kinds, at diiferent heights, and the object is toprovide a device that will automaticallylock itself the raising of thelid, and to provide a lock which can be 1 released and returned to aclosed position 'by raising the lid to a still higher position.

I acc'omplishthe above and other objects which will hereinafter appear,by the means illustrated in the accompanying drawing, in which I Fig. 1,is a view invention removed from a lid and receptacle. Fig. 2, is anedge view of the same. Fig.

'3, is a longitudinalyertical section of a piano bench with the lidraised by means of my invention placed near the outer or free end of thelid, and'Fig. 4 is a fragment of a piano case with the'lid raised by myinvention located near the hinge edge of the lid.

Like characters of reference indicate like parts in the several views,of the drawing.

My invention 7 comprises a plate 3 with screw holes by which it issecured by screws to a lid 6, secured by hinges 4 to a receptacle 5;Depending from the plate is an integral ear 7 to which a flattenedportion of a hook-bar 8 is pivoted. A leaf-spring 9 is attached atoneend to the plate 5 and bears, near its outer free portion, against theend of the hook-bar 8; The end of the bar 8 is flattened in a plane tocontact with the spring and hold the bar-proper by the spring pressure,in-contact with the notched edge of a locking-plate 10. The free lowerend of the hook-bar is bent laterally in the manner shown in Fig. 2 toform a hook 11. I The locking-pin 10 is oval in general form, with moreor less pointed ends to facilitate the shifting from one edge to theother, of the hook 11, and on that edge of the plate which is toward thehinge of the lid a series of notche .12 is provided.

in side elevation of my v tions ofthe lid holding device. The shape ofthe end of the hookbar near its pivot Patented Feb. 7,1922. lipplicationfiled December '10, 1921. 7 Serial no. 521,279. 1

number but they may. be more or less than I that depending upon the"number of positions at which it'is desired to lock the raised" lid. Theplate 10 is'secured to the side of I vice near the free end of the' lid,but for supporting the lid of av piano itself, it is best to locate thelid holding device near Iof theseat to suit the convenience oftheplayer, it 1s best to place the holding dethe hinge where it will beless in evidence the lid, as shown in Fig. 1 I The operation is the samefor all loca-' and afiord a higher range of movement for is such thatwhen pressed by the spring 9 the. bar stands relative to the lockingplate 10 when the lid is closed as shown inthe "lower dotted lines inFig. 3, whereras the lid is raised the hook 11 will follow the notchedside of the plate 10 and enter the notches 12 in the regular order bythe actionof the spring. The-entrance to the notches slope upwardly tohold the hook against a downward movement, but to allow the hook toraise out of a notch byan upward movement of the lid. Consequently, thelid may be raised until a holding notch at the required height isreached. Then, when it, is desired to close the lid, it is raised untilthehook haspassed the upper end of the locking-plate, and thereupon thespring will move the hook to the other side of the locking-plate in thethen elevated position of the hookjand by lowering the lid the hook willbe returned to the place of beginning.

Should a notch too high be entered by the I over again by first liftingit above the end of the locking-plate and closing the lid and by thenraising it to the height desired.

Having thus fully described my invention what I claim as new and wish tosecure by Letters Patent of the United States, is-- 1 l 1. Thecombination of areceptacle having at a normal position, and alocking-plate secured to a Wall of the receptacle, said plate havingnotches into which the hook on the bar is pressed by the spring uponraising the lid.

2. The combination or a receptacle having walls, and'a lid hinged to oneof the Walls, of a lid-adjuster and support comprising a bar pivoted tothe lid and terminating at its free end With a hook, spring means foryieldingly' holding the bar at a normal position, and a locking-platesecured to a Wall of the receptacle, said plate having upper and lowertapering ends and downwardly oblique notches in one edge to successivelyengage the hookloy the action of the spring which presses the hookagainst the notched edge of the plate as the lid is raised and whichcauses the hook to pass down along :1. nose-3s the otheredge of" theplate as thelid is closed.

3. The combination of a receptacle having rigid walls and lid hinged toone. of the ivalls, of a-lid-adjuster and support comprising a platesecured to the lid and having an ear a. bar having a flat end pivoted tothe ear with a hook at its opposite free end, a leaf-spring on the platepressing the ad jacent flat end of the bar to hold theloar in ayieldingly normal depending position, and alocking-plate generally ovalin shape secured to a Wall of the receptacle With one of its small endstoward the lid, said plate having downwardly'oblique notches in one edgeto successively engage the hook 'by the action of the spring, saidspring pressing the hook against the notched edge or the plate as the11d is raised and aganist the opposite edge of the plate as the lid isclosed.

Signed at Newcastle, Indiana, this the 3rd day of December, 1921. i CARLPETERSQN.

